RDX: 0000000000000014 RSI: 0000800000000402 RDI: 0000000000000014
RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b7550
R13: 00007fbd4f6c5b58 R14: 00000000004b7560 R15: 0000000000000000
------------[ cut here ]------------
kernel BUG at fs/notify/dnotify/dnotify.c:131!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 17621 Comm: syz-executor6 Not tainted 4.14.0-rc5-mm1+ #20
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801b0118380 task.stack: ffff8801c0cc0000
RIP: 0010:dnotify_free_mark+0x4b/0x60 fs/notify/dnotify/dnotify.c:131
RSP: 0018:ffff8801c0cc7b20 EFLAGS: 00010216
RAX: 0000000000010000 RBX: ffff8801cc3bf900 RCX: ffffffff81bdf3bb
RDX: 000000000000b1f1 RSI: ffffc9000420a000 RDI: ffff8801cc3bf978
RBP: ffff8801c0cc7b28 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff87069320 R11: 0000000000000000 R12: ffff8801cc3bf900
R13: ffffffff85126320 R14: ffff8801c0cc7c60 R15: 0000000000000000
FS:  00007fbd4f6c6700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004d4a24 CR3: 00000001d9177000 CR4: 00000000001426f0
DR0: 0000000020000000 DR1: 0000000020001008 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 fsnotify_final_mark_destroy+0x7d/0xc0 fs/notify/mark.c:202
 fsnotify_put_mark+0x469/0x730 fs/notify/mark.c:215
 fcntl_dirnotify+0xa12/0xb90 fs/notify/dnotify/dnotify.c:371
 do_fcntl+0x9e0/0x1050 fs/fcntl.c:412
 SYSC_fcntl fs/fcntl.c:462 [inline]
 SyS_fcntl+0xd6/0x110 fs/fcntl.c:447
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x452869
RSP: 002b:00007fbd4f6c5be8 EFLAGS: 00000212 ORIG_RAX: 0000000000000048
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452869
RDX: 0000000000000014 RSI: 0000800000000402 RDI: 0000000000000014
RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b7550
R13: 00007fbd4f6c5b58 R14: 00000000004b7560 R15: 0000000000000000
Code: ea 03 80 3c 02 00 75 25 48 83 7b 78 00 75 17 e8 9c cb b0 ff 48 8b 3d 85 81 5b 04 48 89 de e8 2d 00 e6 ff 5b 5d c3 e8 85 cb b0 ff <0f> 0b e8 be 3b e6 ff eb d4 66 90 66 2e 0f 1f 84 00 00 00 00 00 
RIP: dnotify_free_mark+0x4b/0x60 fs/notify/dnotify/dnotify.c:131 RSP: ffff8801c0cc7b20
---[ end trace 06344db8a0471c5f ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..